Timing device



I. D. REED.

TIMING DEV\CE.

APPLlcAmN men MAY2.1919.

Patented July 6, 1920.

cM/ not m A JAMES D. REED, 0F EAGLE, MICHIGAN.

TIMING DEVICE.

Specification of Letters lPatent.

Patented July 6. 1920.

Application led May 2, 1919.` Serial No. 294,168.

To all `whom t may concern: y

Be it known that I, JAMES D. Renn, a citizen of the United States, andresiding at Eagle, vin the county of Clmton and State of Michi an, haveinvented a new and Improved rlimingDevice, of which the vfollowing is aspecification. y

This invention relates to means for closing the electric circuits to theseveral s ark plugs of multi-cylinder internal com ustion engines, andthe object of my invention is to provide a timing-ring and a captherefor wherein the Wire and posts are absolutely protected from waterand other undesirable matter.

In the accompanying drawing, Figure 1 is an elevation and Fig. 2 is avertical section of a spark timer especially adapted for the engine of aFord automobile. 111g. 1s a section on the line 3-3 of Fig. 2. Flgs. 4and 5 are sections on the lines 4-4 and -5 respectively of Fig. 3.

Similar reference letters refer to like parts throughout the severalviews.

In automobiles where the timing devices of the engines are so placedthat rain can be thrown onto them and where the binding posts of thecontacts are exposed, sliertcircuiting often takes place, suflicientlyto stop the engine. This is especially true in many1 vehicles where thetimer is mounted at the front end of the cam shaft where it is oftendeluged with water when rain drives against the front of the radiator.`To prevent such short-circuiting, I have provided a combined cap andtiming ring which may be mounted on many of the engines now in use.

In the present construction the base 1 with the rotating shaft 2.mountedtherein, the head 3 mounted on the end of this shaft and positioned inany desired manner, a key 4, washer 5 and nut 6 being shown, are old andwel] known. Any other means for positioning the head 3 on the shaft maybe employed. A circular spring 7 may be mounted within the circularflange 8 on the base to insure a proper circuit between the base and thehead 3.

A contact lever 9 carries a roller 10 at one end, the opposite end 12being connected to a finger 13 on the head 3 by means of a spring 14: tohold the roller 10 outwardly. The construction thus far explained whentaken alone forms no part of my invention.

The cap 16 shown in the drawing has a onl the base.

circumferential flange 17 which centers the timing ring 18,substantially L-shaped in cross section, and a metal ring`19 whosccylindrical flan e 2() fits into the Harige 8 Ahe flange 21 on thetiming ring centers it within the cap. Screws 22', particularly shown inFig. 5, serve to hold the parts together. An arm 23 of any desiredconstruction presses the cap toward the base. The cap may have a lug 24provided with a hole 25 to receive any-desired connector whereby the capmay be turned to advance or retard the spark.

Mounted in the timing ring 18 are a number of contacts 26, one for eachcylinder of the engine, and each preferably integral with a stem 27 thatextends through the timing ring (Fig. 4) and has nuts 28 on its outerend between which the end of' a circuit Wire 31 may be secured. The capmay have a hollow nei-k 29 through which the circuit wires extend andthen pass around the body of the contact rin" to the stems 27,preferably to around the screws 22, in the circular chamber between thetiming ring and the cap.

The flange 21 on the timing ring lits within the fiange 17 on the cap.After the parts are secured together the circular chamber between thering 18 and the cap and the neck 29 of the cap are poured full of somenon-conducting fusible material 30, such as rosin, which, when hard,will incase and seal all the parts in proper position. The Wires 31outside of the cap may be protected by means of rubber tubingr 34extending over the neck 29 as shown in Fig. 2 or into it as shown inFig. 1.

It will be seen that the wires 31 are entirely inclosed and that thedanger of shortcircuiting because of rain is substantially eliminated.

The details and proportions of the various parts may all be changed byautomotive engineers without departing from the spirit of my invention.

1. In a timing device for internal combustion engines, the combinationwith the base and the timin shaft supporting a contact roller, a capaving a hollow neck, a non-conducting timing ring L-shaped in crosssection secured within the cap and forming two walls of a circularconduit, a series of contact plates mounted therein in the path of saidroller, a stem for each contact plate extending through the ring, wiresConnecting to said stems and extending out through the neck 0n the cap,and fusible non-conducting material filling the 4gspzice hetween thetiming ring and the cap :in in wliirh the wires are embedded.

2. sIn a timing .device yfor internal combustion engines` theeqnlbingition of ,n flanged liaise and :i timing shaft supporting vente@whew wv hvngiwhollwvneck, :in iL- shaped n feqnducting timing ringy.secugdgl'iithin lie-cup undso formed 4es to leraren ('.Vitrqulgiheliumherieeries of :contm't plates [pollinated in tlie in the p tgh lof`the i;pcllei', a gtem or .eiph' ,cqntget extend' tlnjough i,lie -ring4into sai eirulgii' cham er, n `w` efexrtending-from eecli stem pttttilil'fugh whe of the gap, fusible noneond1nptjng `@leggerti/gil l'llipgthe'cinculzir chainheryzind neck of the .egtp and in which the wires:ire embedded, :i bearing ring mounted iu Suid eatp und having :i flmigeHtting the flanged base, find means to secure the ez'ip, timing ring:ind hearing ring toget'her.

3. A rap foi' n timing dei'ire comprising a body having :i rylindriinlflange and :i hollow neck, zi timing ring of substantially 'L-slnipedcross section fitting within the flange of' the Cap #ons `to `leave l:icircular plignghr ihet ten tnem, Vi s eries of Contact .plates ziiripd y`the timing ring, stems connected 4to sgid plates und Vextendingradially il at .tlpquglg a$11.1, 'ing1 srenis to serrure the .ringnipiwtioin :Ayres extending from Suid stems around the ring and gutlhroiigh Said neck d ingu'ljitigg mlittiigil lilling said circulariziipber l:illgl,emlgieddiiig the wires :1nd the eng sA of sfiid tems.

' f S` JAMES D. Risico

